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<FONT color="green">001</FONT>    package metaface.client;<a name="line.1"></a>
<FONT color="green">002</FONT>    import java.io.*;<a name="line.2"></a>
<FONT color="green">003</FONT>    import java.awt.*;<a name="line.3"></a>
<FONT color="green">004</FONT>    import java.awt.geom.*;<a name="line.4"></a>
<FONT color="green">005</FONT>    import javax.sound.sampled.*;<a name="line.5"></a>
<FONT color="green">006</FONT>    import javax.swing.*;<a name="line.6"></a>
<FONT color="green">007</FONT>    import java.awt.event.*;<a name="line.7"></a>
<FONT color="green">008</FONT>    import java.util.*;<a name="line.8"></a>
<FONT color="green">009</FONT>    import netscape.javascript.*;<a name="line.9"></a>
<FONT color="green">010</FONT>    import metaface.mpeg4.*;<a name="line.10"></a>
<FONT color="green">011</FONT>    import metaface.interaction.*;<a name="line.11"></a>
<FONT color="green">012</FONT>    import metaface.embodiment.*;<a name="line.12"></a>
<FONT color="green">013</FONT>    import metaface.dsp.*;<a name="line.13"></a>
<FONT color="green">014</FONT>    /**<a name="line.14"></a>
<FONT color="green">015</FONT>     *  This class defines the base level client behaviour for the MetaFace<a name="line.15"></a>
<FONT color="green">016</FONT>     *  framework. It controls the facial animation rendering and speech sysnthesis.<a name="line.16"></a>
<FONT color="green">017</FONT>     *  It also controls the mailine execution of the client for the framework.<a name="line.17"></a>
<FONT color="green">018</FONT>     *<a name="line.18"></a>
<FONT color="green">019</FONT>     *@author     Simon Beard <a name="line.19"></a>
<FONT color="green">020</FONT>     *@version    1.0<a name="line.20"></a>
<FONT color="green">021</FONT>     */<a name="line.21"></a>
<FONT color="green">022</FONT>    public abstract class MetaFaceClient extends Thread {<a name="line.22"></a>
<FONT color="green">023</FONT>    <a name="line.23"></a>
<FONT color="green">024</FONT>            /**<a name="line.24"></a>
<FONT color="green">025</FONT>             *  Description of the Field<a name="line.25"></a>
<FONT color="green">026</FONT>             */<a name="line.26"></a>
<FONT color="green">027</FONT>            protected static int MAX_PHONEMES = 100;<a name="line.27"></a>
<FONT color="green">028</FONT>    <a name="line.28"></a>
<FONT color="green">029</FONT>            /**<a name="line.29"></a>
<FONT color="green">030</FONT>             *  Description of the Field<a name="line.30"></a>
<FONT color="green">031</FONT>             */<a name="line.31"></a>
<FONT color="green">032</FONT>            protected FAPData frame;<a name="line.32"></a>
<FONT color="green">033</FONT>            /**<a name="line.33"></a>
<FONT color="green">034</FONT>             *  Description of the Field<a name="line.34"></a>
<FONT color="green">035</FONT>             */<a name="line.35"></a>
<FONT color="green">036</FONT>            protected FAPData lastframe;<a name="line.36"></a>
<FONT color="green">037</FONT>            /**<a name="line.37"></a>
<FONT color="green">038</FONT>             *  Description of the Field<a name="line.38"></a>
<FONT color="green">039</FONT>             */<a name="line.39"></a>
<FONT color="green">040</FONT>            protected SourceDataLine line;<a name="line.40"></a>
<FONT color="green">041</FONT>            /**<a name="line.41"></a>
<FONT color="green">042</FONT>             *  The audio frame rate<a name="line.42"></a>
<FONT color="green">043</FONT>             */<a name="line.43"></a>
<FONT color="green">044</FONT>            private float audioFrameRate;<a name="line.44"></a>
<FONT color="green">045</FONT>    <a name="line.45"></a>
<FONT color="green">046</FONT>            /**<a name="line.46"></a>
<FONT color="green">047</FONT>             *  How many audio frames per video frame<a name="line.47"></a>
<FONT color="green">048</FONT>             */<a name="line.48"></a>
<FONT color="green">049</FONT>            private float afpvf;<a name="line.49"></a>
<FONT color="green">050</FONT>            /**<a name="line.50"></a>
<FONT color="green">051</FONT>             *  Size of audio frames<a name="line.51"></a>
<FONT color="green">052</FONT>             */<a name="line.52"></a>
<FONT color="green">053</FONT>            private int audioFrameSize;<a name="line.53"></a>
<FONT color="green">054</FONT>            /**<a name="line.54"></a>
<FONT color="green">055</FONT>             *  The facial animation frame rate<a name="line.55"></a>
<FONT color="green">056</FONT>             */<a name="line.56"></a>
<FONT color="green">057</FONT>            private int videoFrameRate;<a name="line.57"></a>
<FONT color="green">058</FONT>            /**<a name="line.58"></a>
<FONT color="green">059</FONT>             *  Window for accessing web browser<a name="line.59"></a>
<FONT color="green">060</FONT>             */<a name="line.60"></a>
<FONT color="green">061</FONT>            private JSObject window;<a name="line.61"></a>
<FONT color="green">062</FONT>            /**<a name="line.62"></a>
<FONT color="green">063</FONT>             *  Default toolkit (for rendering)<a name="line.63"></a>
<FONT color="green">064</FONT>             */<a name="line.64"></a>
<FONT color="green">065</FONT>            private Toolkit tk;<a name="line.65"></a>
<FONT color="green">066</FONT>            /**<a name="line.66"></a>
<FONT color="green">067</FONT>             *  Audio output information structure<a name="line.67"></a>
<FONT color="green">068</FONT>             */<a name="line.68"></a>
<FONT color="green">069</FONT>            private DataLine.Info info;<a name="line.69"></a>
<FONT color="green">070</FONT>            /**<a name="line.70"></a>
<FONT color="green">071</FONT>             *  The current audio bytes being read<a name="line.71"></a>
<FONT color="green">072</FONT>             */<a name="line.72"></a>
<FONT color="green">073</FONT>            private byte[] audioBytes;<a name="line.73"></a>
<FONT color="green">074</FONT>            /**<a name="line.74"></a>
<FONT color="green">075</FONT>             *  The speech audio input stream (WAV file)<a name="line.75"></a>
<FONT color="green">076</FONT>             */<a name="line.76"></a>
<FONT color="green">077</FONT>            private AudioInputStream audioInputStream;<a name="line.77"></a>
<FONT color="green">078</FONT>            /**<a name="line.78"></a>
<FONT color="green">079</FONT>             *  The DMTL parser (for client interaction management)<a name="line.79"></a>
<FONT color="green">080</FONT>             */<a name="line.80"></a>
<FONT color="green">081</FONT>            private DMTLParser dmtlparser;<a name="line.81"></a>
<FONT color="green">082</FONT>            /**<a name="line.82"></a>
<FONT color="green">083</FONT>             *  The idle behaviour to be used<a name="line.83"></a>
<FONT color="green">084</FONT>             */<a name="line.84"></a>
<FONT color="green">085</FONT>            private IdleBehaviour idlebehaviour;<a name="line.85"></a>
<FONT color="green">086</FONT>            /**<a name="line.86"></a>
<FONT color="green">087</FONT>             *  Whether the current rendered FAP frame is too early<a name="line.87"></a>
<FONT color="green">088</FONT>             */<a name="line.88"></a>
<FONT color="green">089</FONT>            private boolean tooearly;<a name="line.89"></a>
<FONT color="green">090</FONT>            /**<a name="line.90"></a>
<FONT color="green">091</FONT>             *  The TTS DSP to use in synthesising speech audio from phonemes<a name="line.91"></a>
<FONT color="green">092</FONT>             */<a name="line.92"></a>
<FONT color="green">093</FONT>            private DigitalSignalProcessor dsp;<a name="line.93"></a>
<FONT color="green">094</FONT>            /**<a name="line.94"></a>
<FONT color="green">095</FONT>             *  A current store of target web browser frames and their contents<a name="line.95"></a>
<FONT color="green">096</FONT>             */<a name="line.96"></a>
<FONT color="green">097</FONT>            private Hashtable webpages;<a name="line.97"></a>
<FONT color="green">098</FONT>            /**<a name="line.98"></a>
<FONT color="green">099</FONT>             *  The FAP buffer used for rendering<a name="line.99"></a>
<FONT color="green">100</FONT>             */<a name="line.100"></a>
<FONT color="green">101</FONT>            private Vector fapdatabuffer;<a name="line.101"></a>
<FONT color="green">102</FONT>            /**<a name="line.102"></a>
<FONT color="green">103</FONT>             *  The phoneme buffer used for synthesising<a name="line.103"></a>
<FONT color="green">104</FONT>             */<a name="line.104"></a>
<FONT color="green">105</FONT>            private Vector phonemedatabuffer;<a name="line.105"></a>
<FONT color="green">106</FONT>            /**<a name="line.106"></a>
<FONT color="green">107</FONT>             *  The speech text (sometime displayed in a speech bubble)<a name="line.107"></a>
<FONT color="green">108</FONT>             */<a name="line.108"></a>
<FONT color="green">109</FONT>            private String speechtext;<a name="line.109"></a>
<FONT color="green">110</FONT>            /**<a name="line.110"></a>
<FONT color="green">111</FONT>             *  The number of FAP frames rendered<a name="line.111"></a>
<FONT color="green">112</FONT>             */<a name="line.112"></a>
<FONT color="green">113</FONT>            private int numFrames;<a name="line.113"></a>
<FONT color="green">114</FONT>            /**<a name="line.114"></a>
<FONT color="green">115</FONT>             *  Is a new WAV file needed (last one finished)<a name="line.115"></a>
<FONT color="green">116</FONT>             */<a name="line.116"></a>
<FONT color="green">117</FONT>            private boolean newfile;<a name="line.117"></a>
<FONT color="green">118</FONT>            /**<a name="line.118"></a>
<FONT color="green">119</FONT>             *  The current speech audio file being read (WAV file)<a name="line.119"></a>
<FONT color="green">120</FONT>             */<a name="line.120"></a>
<FONT color="green">121</FONT>            private File audioFile;<a name="line.121"></a>
<FONT color="green">122</FONT>            /**<a name="line.122"></a>
<FONT color="green">123</FONT>             *  The MPEG-4 face drawing region<a name="line.123"></a>
<FONT color="green">124</FONT>             */<a name="line.124"></a>
<FONT color="green">125</FONT>            private DrawingArea appletDA;<a name="line.125"></a>
<FONT color="green">126</FONT>            /**<a name="line.126"></a>
<FONT color="green">127</FONT>             *  Is the audio file the first one to be read (take initialisation steps)<a name="line.127"></a>
<FONT color="green">128</FONT>             */<a name="line.128"></a>
<FONT color="green">129</FONT>            private boolean firstfile;<a name="line.129"></a>
<FONT color="green">130</FONT>    <a name="line.130"></a>
<FONT color="green">131</FONT>    <a name="line.131"></a>
<FONT color="green">132</FONT>            /**<a name="line.132"></a>
<FONT color="green">133</FONT>             *  Creates new NewMetaFaceClient<a name="line.133"></a>
<FONT color="green">134</FONT>             *<a name="line.134"></a>
<FONT color="green">135</FONT>             *@param  digitalsignalprocessor  The TTS DSP to be used in synthesising<a name="line.135"></a>
<FONT color="green">136</FONT>             *      phonemes into speech audio<a name="line.136"></a>
<FONT color="green">137</FONT>             *@param  drawingarea             The drawing region for the MPEG-4 face<a name="line.137"></a>
<FONT color="green">138</FONT>             *@param  win                     The JSObject window to access the web browser<a name="line.138"></a>
<FONT color="green">139</FONT>             *@param  ib                      The idle behaviour to be employed by the<a name="line.139"></a>
<FONT color="green">140</FONT>             *      client<a name="line.140"></a>
<FONT color="green">141</FONT>             */<a name="line.141"></a>
<FONT color="green">142</FONT>            public MetaFaceClient(DigitalSignalProcessor digitalsignalprocessor, DrawingArea drawingarea, JSObject win, IdleBehaviour ib) {<a name="line.142"></a>
<FONT color="green">143</FONT>    <a name="line.143"></a>
<FONT color="green">144</FONT>                    //Clean up any temporary files from last time<a name="line.144"></a>
<FONT color="green">145</FONT>                    cleanFiles();<a name="line.145"></a>
<FONT color="green">146</FONT>    <a name="line.146"></a>
<FONT color="green">147</FONT>                    //Set initialisation varaibles and copy incoming objects<a name="line.147"></a>
<FONT color="green">148</FONT>                    idlebehaviour = ib;<a name="line.148"></a>
<FONT color="green">149</FONT>                    audioFrameRate = 8000;<a name="line.149"></a>
<FONT color="green">150</FONT>                    audioFrameSize = 1;<a name="line.150"></a>
<FONT color="green">151</FONT>                    frame = new FAPData();<a name="line.151"></a>
<FONT color="green">152</FONT>                    audioBytes = new byte[100000];<a name="line.152"></a>
<FONT color="green">153</FONT>                    tk = Toolkit.getDefaultToolkit();<a name="line.153"></a>
<FONT color="green">154</FONT>                    lastframe = new FAPData();<a name="line.154"></a>
<FONT color="green">155</FONT>                    frame = new FAPData();<a name="line.155"></a>
<FONT color="green">156</FONT>                    numFrames = 0;<a name="line.156"></a>
<FONT color="green">157</FONT>                    videoFrameRate = 25;<a name="line.157"></a>
<FONT color="green">158</FONT>                    tooearly = false;<a name="line.158"></a>
<FONT color="green">159</FONT>                    afpvf = audioFrameRate / videoFrameRate;<a name="line.159"></a>
<FONT color="green">160</FONT>                    dsp = digitalsignalprocessor;<a name="line.160"></a>
<FONT color="green">161</FONT>                    appletDA = drawingarea;<a name="line.161"></a>
<FONT color="green">162</FONT>                    webpages = new Hashtable();<a name="line.162"></a>
<FONT color="green">163</FONT>                    numFrames = 0;<a name="line.163"></a>
<FONT color="green">164</FONT>                    fapdatabuffer = new Vector();<a name="line.164"></a>
<FONT color="green">165</FONT>                    phonemedatabuffer = new Vector();<a name="line.165"></a>
<FONT color="green">166</FONT>                    window = win;<a name="line.166"></a>
<FONT color="green">167</FONT>                    speechtext = "";<a name="line.167"></a>
<FONT color="green">168</FONT>                    newfile = true;<a name="line.168"></a>
<FONT color="green">169</FONT>                    audioFile = null;<a name="line.169"></a>
<FONT color="green">170</FONT>                    line = null;<a name="line.170"></a>
<FONT color="green">171</FONT>    <a name="line.171"></a>
<FONT color="green">172</FONT>                    //Create empty audio line<a name="line.172"></a>
<FONT color="green">173</FONT>                    try {<a name="line.173"></a>
<FONT color="green">174</FONT>                            line = (SourceDataLine) AudioSystem.getLine(new Line.Info(SourceDataLine.class));<a name="line.174"></a>
<FONT color="green">175</FONT>                    } catch (LineUnavailableException e) {<a name="line.175"></a>
<FONT color="green">176</FONT>                            System.out.println("Source data line not available");<a name="line.176"></a>
<FONT color="green">177</FONT>                            e.printStackTrace();<a name="line.177"></a>
<FONT color="green">178</FONT>                    }<a name="line.178"></a>
<FONT color="green">179</FONT>                    firstfile = true;<a name="line.179"></a>
<FONT color="green">180</FONT>            }<a name="line.180"></a>
<FONT color="green">181</FONT>    <a name="line.181"></a>
<FONT color="green">182</FONT>    <a name="line.182"></a>
<FONT color="green">183</FONT>            /**<a name="line.183"></a>
<FONT color="green">184</FONT>             *  Process an MPEG-4 facial animation header (get the frame rate)<a name="line.184"></a>
<FONT color="green">185</FONT>             *<a name="line.185"></a>
<FONT color="green">186</FONT>             *@param  fapheader  The MPEG-4 header<a name="line.186"></a>
<FONT color="green">187</FONT>             */<a name="line.187"></a>
<FONT color="green">188</FONT>            protected synchronized void processMPEG4Header(String fapheader) {<a name="line.188"></a>
<FONT color="green">189</FONT>                    int ptr;<a name="line.189"></a>
<FONT color="green">190</FONT>                    String temp;<a name="line.190"></a>
<FONT color="green">191</FONT>    <a name="line.191"></a>
<FONT color="green">192</FONT>                    ptr = 0;<a name="line.192"></a>
<FONT color="green">193</FONT>    <a name="line.193"></a>
<FONT color="green">194</FONT>                    //Skip to frame rate and set class variable<a name="line.194"></a>
<FONT color="green">195</FONT>                    ptr = fapheader.indexOf(" ", ptr);<a name="line.195"></a>
<FONT color="green">196</FONT>                    ptr = fapheader.indexOf(" ", ptr + 1);<a name="line.196"></a>
<FONT color="green">197</FONT>                    temp = fapheader.substring(ptr + 1, fapheader.indexOf(" ", ptr + 1));<a name="line.197"></a>
<FONT color="green">198</FONT>                    if (new Integer(temp).intValue() == 0) {<a name="line.198"></a>
<FONT color="green">199</FONT>                            temp = String.valueOf(25);<a name="line.199"></a>
<FONT color="green">200</FONT>                    }<a name="line.200"></a>
<FONT color="green">201</FONT>                    setVideoFrameRate(new Integer(temp).intValue());<a name="line.201"></a>
<FONT color="green">202</FONT>            }<a name="line.202"></a>
<FONT color="green">203</FONT>    <a name="line.203"></a>
<FONT color="green">204</FONT>    <a name="line.204"></a>
<FONT color="green">205</FONT>            /**<a name="line.205"></a>
<FONT color="green">206</FONT>             *  This method updates a table of target frames and their current URL content.<a name="line.206"></a>
<FONT color="green">207</FONT>             *  This method is called by the MetaFace Applet receiving JavaScript<a name="line.207"></a>
<FONT color="green">208</FONT>             *  notifications.<a name="line.208"></a>
<FONT color="green">209</FONT>             *<a name="line.209"></a>
<FONT color="green">210</FONT>             *@param  url     The URL displayed within the target frame<a name="line.210"></a>
<FONT color="green">211</FONT>             *@param  target  The target frame<a name="line.211"></a>
<FONT color="green">212</FONT>             */<a name="line.212"></a>
<FONT color="green">213</FONT>            public synchronized void updateWebPage(String url, String target) {<a name="line.213"></a>
<FONT color="green">214</FONT>                    String oldurl;<a name="line.214"></a>
<FONT color="green">215</FONT>    <a name="line.215"></a>
<FONT color="green">216</FONT>                    //If target not in table -- add<a name="line.216"></a>
<FONT color="green">217</FONT>                    if (!webpages.containsKey("target")) {<a name="line.217"></a>
<FONT color="green">218</FONT>                            webpages.put(target, url);<a name="line.218"></a>
<FONT color="green">219</FONT>                    } else {<a name="line.219"></a>
<FONT color="green">220</FONT>                            //Else see if URL has been updated<a name="line.220"></a>
<FONT color="green">221</FONT>                            oldurl = (String) webpages.get(target);<a name="line.221"></a>
<FONT color="green">222</FONT>                            if (oldurl.indexOf(url) != 0) {<a name="line.222"></a>
<FONT color="green">223</FONT>                                    webpages.put(target, url);<a name="line.223"></a>
<FONT color="green">224</FONT>                            } else {<a name="line.224"></a>
<FONT color="green">225</FONT>                                    webpages.remove(target);<a name="line.225"></a>
<FONT color="green">226</FONT>                            }<a name="line.226"></a>
<FONT color="green">227</FONT>                    }<a name="line.227"></a>
<FONT color="green">228</FONT>            }<a name="line.228"></a>
<FONT color="green">229</FONT>    <a name="line.229"></a>
<FONT color="green">230</FONT>    <a name="line.230"></a>
<FONT color="green">231</FONT>            /**<a name="line.231"></a>
<FONT color="green">232</FONT>             *  The client polls for changes to the web pages table and processes<a name="line.232"></a>
<FONT color="green">233</FONT>             */<a name="line.233"></a>
<FONT color="green">234</FONT>            public synchronized void pollWebPages() {<a name="line.234"></a>
<FONT color="green">235</FONT>                    Enumeration keys;<a name="line.235"></a>
<FONT color="green">236</FONT>                    String target;<a name="line.236"></a>
<FONT color="green">237</FONT>                    String url;<a name="line.237"></a>
<FONT color="green">238</FONT>    <a name="line.238"></a>
<FONT color="green">239</FONT>                    //Check entire table<a name="line.239"></a>
<FONT color="green">240</FONT>                    keys = webpages.keys();<a name="line.240"></a>
<FONT color="green">241</FONT>                    while (keys.hasMoreElements()) {<a name="line.241"></a>
<FONT color="green">242</FONT>    <a name="line.242"></a>
<FONT color="green">243</FONT>                            //Use URLs as stimulus to interaction manager<a name="line.243"></a>
<FONT color="green">244</FONT>                            target = (String) (keys.nextElement());<a name="line.244"></a>
<FONT color="green">245</FONT>                            url = (String) (webpages.get(target));<a name="line.245"></a>
<FONT color="green">246</FONT>                            webpages.remove(target);                        <a name="line.246"></a>
<FONT color="green">247</FONT>                            processUserStimulus(url);<a name="line.247"></a>
<FONT color="green">248</FONT>                    }<a name="line.248"></a>
<FONT color="green">249</FONT>            }<a name="line.249"></a>
<FONT color="green">250</FONT>    <a name="line.250"></a>
<FONT color="green">251</FONT>    <a name="line.251"></a>
<FONT color="green">252</FONT>            /**<a name="line.252"></a>
<FONT color="green">253</FONT>             *  Sets the videoFrameRate attribute of the MetaFaceClient object<a name="line.253"></a>
<FONT color="green">254</FONT>             *<a name="line.254"></a>
<FONT color="green">255</FONT>             *@param  fr  The new video frame rate<a name="line.255"></a>
<FONT color="green">256</FONT>             */<a name="line.256"></a>
<FONT color="green">257</FONT>            public synchronized void setVideoFrameRate(int fr) {<a name="line.257"></a>
<FONT color="green">258</FONT>                    videoFrameRate = fr;<a name="line.258"></a>
<FONT color="green">259</FONT>                    afpvf = audioFrameRate / videoFrameRate;<a name="line.259"></a>
<FONT color="green">260</FONT>            }<a name="line.260"></a>
<FONT color="green">261</FONT>            <a name="line.261"></a>
<FONT color="green">262</FONT>            /**<a name="line.262"></a>
<FONT color="green">263</FONT>             *  This method allows text to be appended to the speech text (normally<a name="line.263"></a>
<FONT color="green">264</FONT>             *  displayed within a speech bubble)<a name="line.264"></a>
<FONT color="green">265</FONT>             *<a name="line.265"></a>
<FONT color="green">266</FONT>             *@param  text  The speech text to append<a name="line.266"></a>
<FONT color="green">267</FONT>             */<a name="line.267"></a>
<FONT color="green">268</FONT>            protected synchronized void appendSpeechText(String text) {<a name="line.268"></a>
<FONT color="green">269</FONT>                    speechtext = speechtext.concat(text);<a name="line.269"></a>
<FONT color="green">270</FONT>            }<a name="line.270"></a>
<FONT color="green">271</FONT>    <a name="line.271"></a>
<FONT color="green">272</FONT>    <a name="line.272"></a>
<FONT color="green">273</FONT>            /**<a name="line.273"></a>
<FONT color="green">274</FONT>             *  Sets the speech text attribute (for a speech bubble)<a name="line.274"></a>
<FONT color="green">275</FONT>             *<a name="line.275"></a>
<FONT color="green">276</FONT>             *@param  text  The new speech text<a name="line.276"></a>
<FONT color="green">277</FONT>             */<a name="line.277"></a>
<FONT color="green">278</FONT>            protected synchronized void setSpeechText(String text) {<a name="line.278"></a>
<FONT color="green">279</FONT>                    speechtext = new String(text);<a name="line.279"></a>
<FONT color="green">280</FONT>            }<a name="line.280"></a>
<FONT color="green">281</FONT>    <a name="line.281"></a>
<FONT color="green">282</FONT>    <a name="line.282"></a>
<FONT color="green">283</FONT>            /**<a name="line.283"></a>
<FONT color="green">284</FONT>             *  Sets the digitalSignalProcessor (TTS DSP) attribute of the MetaFaceClient<a name="line.284"></a>
<FONT color="green">285</FONT>             *  object<a name="line.285"></a>
<FONT color="green">286</FONT>             *<a name="line.286"></a>
<FONT color="green">287</FONT>             *@param  newdsp  The new DSP<a name="line.287"></a>
<FONT color="green">288</FONT>             */<a name="line.288"></a>
<FONT color="green">289</FONT>            protected synchronized void setDigitalSignalProcessor(DigitalSignalProcessor newdsp) {<a name="line.289"></a>
<FONT color="green">290</FONT>                    dsp = newdsp;<a name="line.290"></a>
<FONT color="green">291</FONT>            }<a name="line.291"></a>
<FONT color="green">292</FONT>    <a name="line.292"></a>
<FONT color="green">293</FONT>    <a name="line.293"></a>
<FONT color="green">294</FONT>            /**<a name="line.294"></a>
<FONT color="green">295</FONT>             *  Gets the digitalSignalProcessor attribute of the MetaFaceClient object<a name="line.295"></a>
<FONT color="green">296</FONT>             *<a name="line.296"></a>
<FONT color="green">297</FONT>             *@return    The current DSP<a name="line.297"></a>
<FONT color="green">298</FONT>             */<a name="line.298"></a>
<FONT color="green">299</FONT>            protected synchronized DigitalSignalProcessor getDigitalSignalProcessor() {<a name="line.299"></a>
<FONT color="green">300</FONT>                    return (dsp);<a name="line.300"></a>
<FONT color="green">301</FONT>            }<a name="line.301"></a>
<FONT color="green">302</FONT>    <a name="line.302"></a>
<FONT color="green">303</FONT>    <a name="line.303"></a>
<FONT color="green">304</FONT>            /**<a name="line.304"></a>
<FONT color="green">305</FONT>             *  Gets the speechText attribute of the MetaFaceClient object<a name="line.305"></a>
<FONT color="green">306</FONT>             *<a name="line.306"></a>
<FONT color="green">307</FONT>             *@return    The current speech text (for a speech bubble)<a name="line.307"></a>
<FONT color="green">308</FONT>             */<a name="line.308"></a>
<FONT color="green">309</FONT>            public synchronized String getSpeechText() {<a name="line.309"></a>
<FONT color="green">310</FONT>                    return (speechtext);<a name="line.310"></a>
<FONT color="green">311</FONT>            }<a name="line.311"></a>
<FONT color="green">312</FONT>    <a name="line.312"></a>
<FONT color="green">313</FONT>    <a name="line.313"></a>
<FONT color="green">314</FONT>            /**<a name="line.314"></a>
<FONT color="green">315</FONT>             *  This is caled when the client starts<a name="line.315"></a>
<FONT color="green">316</FONT>             */<a name="line.316"></a>
<FONT color="green">317</FONT>            public abstract void startClient();<a name="line.317"></a>
<FONT color="green">318</FONT>    <a name="line.318"></a>
<FONT color="green">319</FONT>    <a name="line.319"></a>
<FONT color="green">320</FONT>            /**<a name="line.320"></a>
<FONT color="green">321</FONT>             *  This is called when the client exits<a name="line.321"></a>
<FONT color="green">322</FONT>             */<a name="line.322"></a>
<FONT color="green">323</FONT>            public abstract void exit();<a name="line.323"></a>
<FONT color="green">324</FONT>    <a name="line.324"></a>
<FONT color="green">325</FONT>    <a name="line.325"></a>
<FONT color="green">326</FONT>            /**<a name="line.326"></a>
<FONT color="green">327</FONT>             *  The method called when processing stimulus such as hypertext or natural<a name="line.327"></a>
<FONT color="green">328</FONT>             *  language<a name="line.328"></a>
<FONT color="green">329</FONT>             *<a name="line.329"></a>
<FONT color="green">330</FONT>             *@param  usertext  The stimulus<a name="line.330"></a>
<FONT color="green">331</FONT>             */<a name="line.331"></a>
<FONT color="green">332</FONT>            public abstract void processUserStimulus(String usertext);<a name="line.332"></a>
<FONT color="green">333</FONT>    <a name="line.333"></a>
<FONT color="green">334</FONT>    <a name="line.334"></a>
<FONT color="green">335</FONT>            /**<a name="line.335"></a>
<FONT color="green">336</FONT>             *  Obtain phonemes from the buffer<a name="line.336"></a>
<FONT color="green">337</FONT>             *<a name="line.337"></a>
<FONT color="green">338</FONT>             *@return    Phonemes for synthesising speech audio<a name="line.338"></a>
<FONT color="green">339</FONT>             */<a name="line.339"></a>
<FONT color="green">340</FONT>            protected synchronized Vector readPhonemesFromBuffer() {<a name="line.340"></a>
<FONT color="green">341</FONT>                    Vector output;<a name="line.341"></a>
<FONT color="green">342</FONT>                    int i;<a name="line.342"></a>
<FONT color="green">343</FONT>                    int j;<a name="line.343"></a>
<FONT color="green">344</FONT>                    output = new Vector();<a name="line.344"></a>
<FONT color="green">345</FONT>    <a name="line.345"></a>
<FONT color="green">346</FONT>                    //check if buffer empty<a name="line.346"></a>
<FONT color="green">347</FONT>                    if (phonemedatabuffer.size() == 0) {<a name="line.347"></a>
<FONT color="green">348</FONT>                            return output;<a name="line.348"></a>
<FONT color="green">349</FONT>                    } else if (phonemedatabuffer.size() > MAX_PHONEMES) {<a name="line.349"></a>
<FONT color="green">350</FONT>    <a name="line.350"></a>
<FONT color="green">351</FONT>                            //Get maximum amount of phonemes<a name="line.351"></a>
<FONT color="green">352</FONT>                            for (i = 0; i &lt; MAX_PHONEMES; i++) {<a name="line.352"></a>
<FONT color="green">353</FONT>                                    output.add(phonemedatabuffer.remove(0));<a name="line.353"></a>
<FONT color="green">354</FONT>                            }<a name="line.354"></a>
<FONT color="green">355</FONT>                    } else {<a name="line.355"></a>
<FONT color="green">356</FONT>    <a name="line.356"></a>
<FONT color="green">357</FONT>                            //Get all phonemes<a name="line.357"></a>
<FONT color="green">358</FONT>                            j = phonemedatabuffer.size();<a name="line.358"></a>
<FONT color="green">359</FONT>                            for (i = 0; i &lt; j; i++) {<a name="line.359"></a>
<FONT color="green">360</FONT>                                    output.add(phonemedatabuffer.remove(0));<a name="line.360"></a>
<FONT color="green">361</FONT>                            }<a name="line.361"></a>
<FONT color="green">362</FONT>                    }<a name="line.362"></a>
<FONT color="green">363</FONT>                    return (output);<a name="line.363"></a>
<FONT color="green">364</FONT>            }<a name="line.364"></a>
<FONT color="green">365</FONT>    <a name="line.365"></a>
<FONT color="green">366</FONT>    <a name="line.366"></a>
<FONT color="green">367</FONT>            /**<a name="line.367"></a>
<FONT color="green">368</FONT>             *  Add phonemes to the buffer<a name="line.368"></a>
<FONT color="green">369</FONT>             *<a name="line.369"></a>
<FONT color="green">370</FONT>             *@param  phonemes  Phonemes to be synthesised<a name="line.370"></a>
<FONT color="green">371</FONT>             */<a name="line.371"></a>
<FONT color="green">372</FONT>            protected synchronized void addPhonemesToBuffer(Vector phonemes) {<a name="line.372"></a>
<FONT color="green">373</FONT>                    int i;<a name="line.373"></a>
<FONT color="green">374</FONT>    <a name="line.374"></a>
<FONT color="green">375</FONT>                    for (i = 0; i &lt; phonemes.size(); i++) {<a name="line.375"></a>
<FONT color="green">376</FONT>                            phonemedatabuffer.add(((String) phonemes.elementAt(i)).trim());<a name="line.376"></a>
<FONT color="green">377</FONT>                    }<a name="line.377"></a>
<FONT color="green">378</FONT>            }<a name="line.378"></a>
<FONT color="green">379</FONT>    <a name="line.379"></a>
<FONT color="green">380</FONT>    <a name="line.380"></a>
<FONT color="green">381</FONT>            /**<a name="line.381"></a>
<FONT color="green">382</FONT>             *  Adds a phoneme to the buffer<a name="line.382"></a>
<FONT color="green">383</FONT>             *<a name="line.383"></a>
<FONT color="green">384</FONT>             *@param  phoneme  A phoneme to be synthesised<a name="line.384"></a>
<FONT color="green">385</FONT>             */<a name="line.385"></a>
<FONT color="green">386</FONT>            protected synchronized void addPhonemeToBuffer(String phoneme) {<a name="line.386"></a>
<FONT color="green">387</FONT>                    phonemedatabuffer.add(phoneme.trim());<a name="line.387"></a>
<FONT color="green">388</FONT>            }<a name="line.388"></a>
<FONT color="green">389</FONT>    <a name="line.389"></a>
<FONT color="green">390</FONT>    <a name="line.390"></a>
<FONT color="green">391</FONT>            /**<a name="line.391"></a>
<FONT color="green">392</FONT>             *  Read a FAP frame from the buffer<a name="line.392"></a>
<FONT color="green">393</FONT>             *<a name="line.393"></a>
<FONT color="green">394</FONT>             *@return    A FAPData MPEG-4 FAP frame<a name="line.394"></a>
<FONT color="green">395</FONT>             */<a name="line.395"></a>
<FONT color="green">396</FONT>            protected synchronized FAPData readFrameFromBuffer() {<a name="line.396"></a>
<FONT color="green">397</FONT>                    FAPData frame = new FAPData();<a name="line.397"></a>
<FONT color="green">398</FONT>                    if (fapdatabuffer.size() == 0) {<a name="line.398"></a>
<FONT color="green">399</FONT>                            frame.setNull(true);<a name="line.399"></a>
<FONT color="green">400</FONT>                    } else {<a name="line.400"></a>
<FONT color="green">401</FONT>                            frame.setNull(false);<a name="line.401"></a>
<FONT color="green">402</FONT>                            frame.adjustFAPData((FAPData) fapdatabuffer.remove(0));<a name="line.402"></a>
<FONT color="green">403</FONT>                    }<a name="line.403"></a>
<FONT color="green">404</FONT>                    return (frame);<a name="line.404"></a>
<FONT color="green">405</FONT>            }<a name="line.405"></a>
<FONT color="green">406</FONT>    <a name="line.406"></a>
<FONT color="green">407</FONT>    <a name="line.407"></a>
<FONT color="green">408</FONT>            /**<a name="line.408"></a>
<FONT color="green">409</FONT>             *  Add MPEG-4 FAPs to the buffer<a name="line.409"></a>
<FONT color="green">410</FONT>             *<a name="line.410"></a>
<FONT color="green">411</FONT>             *@param  faps  MPEG-4 FAPs<a name="line.411"></a>
<FONT color="green">412</FONT>             */<a name="line.412"></a>
<FONT color="green">413</FONT>            protected synchronized void addFramesToBuffer(Vector faps) {<a name="line.413"></a>
<FONT color="green">414</FONT>                    int i;<a name="line.414"></a>
<FONT color="green">415</FONT>    <a name="line.415"></a>
<FONT color="green">416</FONT>                    for (i = 0; i &lt; faps.size(); i++) {<a name="line.416"></a>
<FONT color="green">417</FONT>                            fapdatabuffer.add(faps.elementAt(i));<a name="line.417"></a>
<FONT color="green">418</FONT>                    }<a name="line.418"></a>
<FONT color="green">419</FONT>            }<a name="line.419"></a>
<FONT color="green">420</FONT>    <a name="line.420"></a>
<FONT color="green">421</FONT>    <a name="line.421"></a>
<FONT color="green">422</FONT>            /**<a name="line.422"></a>
<FONT color="green">423</FONT>             *  Adds an MPEG-4 FAP to the buffer<a name="line.423"></a>
<FONT color="green">424</FONT>             *<a name="line.424"></a>
<FONT color="green">425</FONT>             *@param  fap  an MPEG-4 FAP<a name="line.425"></a>
<FONT color="green">426</FONT>             */<a name="line.426"></a>
<FONT color="green">427</FONT>            protected synchronized void addFrameToBuffer(FAPData fap) {<a name="line.427"></a>
<FONT color="green">428</FONT>                    fapdatabuffer.add(new FAPData(fap));<a name="line.428"></a>
<FONT color="green">429</FONT>            }<a name="line.429"></a>
<FONT color="green">430</FONT>    <a name="line.430"></a>
<FONT color="green">431</FONT>    <a name="line.431"></a>
<FONT color="green">432</FONT>            /**<a name="line.432"></a>
<FONT color="green">433</FONT>             *  Clear all data from the FAP buffer<a name="line.433"></a>
<FONT color="green">434</FONT>             */<a name="line.434"></a>
<FONT color="green">435</FONT>            protected void clearFAPBuffer() {<a name="line.435"></a>
<FONT color="green">436</FONT>                    fapdatabuffer.clear();<a name="line.436"></a>
<FONT color="green">437</FONT>            }<a name="line.437"></a>
<FONT color="green">438</FONT>    <a name="line.438"></a>
<FONT color="green">439</FONT>    <a name="line.439"></a>
<FONT color="green">440</FONT>            /**<a name="line.440"></a>
<FONT color="green">441</FONT>             *  Clear all data from the phoneme buffer<a name="line.441"></a>
<FONT color="green">442</FONT>             */<a name="line.442"></a>
<FONT color="green">443</FONT>            protected void clearPhonemeBuffer() {<a name="line.443"></a>
<FONT color="green">444</FONT>                    phonemedatabuffer.clear();<a name="line.444"></a>
<FONT color="green">445</FONT>            }<a name="line.445"></a>
<FONT color="green">446</FONT>    <a name="line.446"></a>
<FONT color="green">447</FONT>    <a name="line.447"></a>
<FONT color="green">448</FONT>            /**<a name="line.448"></a>
<FONT color="green">449</FONT>             *  Display an URL in a target frame of the web browser<a name="line.449"></a>
<FONT color="green">450</FONT>             *<a name="line.450"></a>
<FONT color="green">451</FONT>             *@param  target  The target frame (e.g. frame1.frame2.final_frame)<a name="line.451"></a>
<FONT color="green">452</FONT>             *@param  url     The URL to be displayed (e.g. http://www.vhml.org)<a name="line.452"></a>
<FONT color="green">453</FONT>             */<a name="line.453"></a>
<FONT color="green">454</FONT>            protected synchronized void displayHTML(String target, String url) {<a name="line.454"></a>
<FONT color="green">455</FONT>                    window.eval("parent." + target + ".location.href=\"" + url + "\"");<a name="line.455"></a>
<FONT color="green">456</FONT>                    System.gc();<a name="line.456"></a>
<FONT color="green">457</FONT>            }<a name="line.457"></a>
<FONT color="green">458</FONT>    <a name="line.458"></a>
<FONT color="green">459</FONT>    <a name="line.459"></a>
<FONT color="green">460</FONT>            /**<a name="line.460"></a>
<FONT color="green">461</FONT>             *  Stop (interrupt) the current action and idle<a name="line.461"></a>
<FONT color="green">462</FONT>             */<a name="line.462"></a>
<FONT color="green">463</FONT>            public synchronized void stopClient() {<a name="line.463"></a>
<FONT color="green">464</FONT>                    newfile = true;<a name="line.464"></a>
<FONT color="green">465</FONT>    <a name="line.465"></a>
<FONT color="green">466</FONT>                    //Get rid of unused FAPs and phonemes<a name="line.466"></a>
<FONT color="green">467</FONT>                    fapdatabuffer.clear();<a name="line.467"></a>
<FONT color="green">468</FONT>                    phonemedatabuffer.clear();<a name="line.468"></a>
<FONT color="green">469</FONT>    <a name="line.469"></a>
<FONT color="green">470</FONT>                    //Stop and flush audio<a name="line.470"></a>
<FONT color="green">471</FONT>                    if (!firstfile)<a name="line.471"></a>
<FONT color="green">472</FONT>                    {<a name="line.472"></a>
<FONT color="green">473</FONT>                            line.stop();<a name="line.473"></a>
<FONT color="green">474</FONT>                            line.flush();<a name="line.474"></a>
<FONT color="green">475</FONT>                            line.start();<a name="line.475"></a>
<FONT color="green">476</FONT>                    }<a name="line.476"></a>
<FONT color="green">477</FONT>                    <a name="line.477"></a>
<FONT color="green">478</FONT>                    //Reset synchronisation of FAPs and audio<a name="line.478"></a>
<FONT color="green">479</FONT>                    numFrames = (int) ((float) line.getFramePosition() / afpvf);<a name="line.479"></a>
<FONT color="green">480</FONT>                    tooearly = false;<a name="line.480"></a>
<FONT color="green">481</FONT>            }<a name="line.481"></a>
<FONT color="green">482</FONT>    <a name="line.482"></a>
<FONT color="green">483</FONT>    <a name="line.483"></a>
<FONT color="green">484</FONT>            /**<a name="line.484"></a>
<FONT color="green">485</FONT>             *  Change the MPEG-4 face<a name="line.485"></a>
<FONT color="green">486</FONT>             *<a name="line.486"></a>
<FONT color="green">487</FONT>             *@param  mface  The new face<a name="line.487"></a>
<FONT color="green">488</FONT>             */<a name="line.488"></a>
<FONT color="green">489</FONT>            public synchronized void changeModel(MPEG4Face mface) {<a name="line.489"></a>
<FONT color="green">490</FONT>                    appletDA.setMPEG4Face(mface);<a name="line.490"></a>
<FONT color="green">491</FONT>            }<a name="line.491"></a>
<FONT color="green">492</FONT>    <a name="line.492"></a>
<FONT color="green">493</FONT>    <a name="line.493"></a>
<FONT color="green">494</FONT>            /**<a name="line.494"></a>
<FONT color="green">495</FONT>             *  Repaint the drawing area for the MPEG-4 face<a name="line.495"></a>
<FONT color="green">496</FONT>             */<a name="line.496"></a>
<FONT color="green">497</FONT>            public synchronized void repaintDrawingArea() {<a name="line.497"></a>
<FONT color="green">498</FONT>                    appletDA.repaint();<a name="line.498"></a>
<FONT color="green">499</FONT>                    tk.sync();<a name="line.499"></a>
<FONT color="green">500</FONT>            }<a name="line.500"></a>
<FONT color="green">501</FONT>    <a name="line.501"></a>
<FONT color="green">502</FONT>    <a name="line.502"></a>
<FONT color="green">503</FONT>            /**<a name="line.503"></a>
<FONT color="green">504</FONT>             *  Animate the MPEG-4 face drawing area by updating the face with the current<a name="line.504"></a>
<FONT color="green">505</FONT>             *  MPEG-4 FAP frame<a name="line.505"></a>
<FONT color="green">506</FONT>             *<a name="line.506"></a>
<FONT color="green">507</FONT>             *@param  fap  The current FAP frame<a name="line.507"></a>
<FONT color="green">508</FONT>             */<a name="line.508"></a>
<FONT color="green">509</FONT>            public synchronized void animateDrawingArea(FAPData fap) {<a name="line.509"></a>
<FONT color="green">510</FONT>                    appletDA.animateMPEG4Face(fap);<a name="line.510"></a>
<FONT color="green">511</FONT>                    repaintDrawingArea();<a name="line.511"></a>
<FONT color="green">512</FONT>                    lastframe.adjustFAPData(fap);<a name="line.512"></a>
<FONT color="green">513</FONT>            }<a name="line.513"></a>
<FONT color="green">514</FONT>    <a name="line.514"></a>
<FONT color="green">515</FONT>    <a name="line.515"></a>
<FONT color="green">516</FONT>            /**<a name="line.516"></a>
<FONT color="green">517</FONT>             *  Gets the current FAP frame being rendered by the MPEG-4 face<a name="line.517"></a>
<FONT color="green">518</FONT>             *<a name="line.518"></a>
<FONT color="green">519</FONT>             *@return    The current FAP<a name="line.519"></a>
<FONT color="green">520</FONT>             */<a name="line.520"></a>
<FONT color="green">521</FONT>            public synchronized FAPData getFAP() {<a name="line.521"></a>
<FONT color="green">522</FONT>                    return frame;<a name="line.522"></a>
<FONT color="green">523</FONT>            }<a name="line.523"></a>
<FONT color="green">524</FONT>    <a name="line.524"></a>
<FONT color="green">525</FONT>    <a name="line.525"></a>
<FONT color="green">526</FONT>            /**<a name="line.526"></a>
<FONT color="green">527</FONT>             *  Gets the audio frame rate of speech<a name="line.527"></a>
<FONT color="green">528</FONT>             *<a name="line.528"></a>
<FONT color="green">529</FONT>             *@return    The audio frame rate value<a name="line.529"></a>
<FONT color="green">530</FONT>             */<a name="line.530"></a>
<FONT color="green">531</FONT>            public synchronized float getAudioFrameRate() {<a name="line.531"></a>
<FONT color="green">532</FONT>                    return audioFrameRate;<a name="line.532"></a>
<FONT color="green">533</FONT>            }<a name="line.533"></a>
<FONT color="green">534</FONT>    <a name="line.534"></a>
<FONT color="green">535</FONT>    <a name="line.535"></a>
<FONT color="green">536</FONT>            /**<a name="line.536"></a>
<FONT color="green">537</FONT>             *  Gets the audio frame size of speech<a name="line.537"></a>
<FONT color="green">538</FONT>             *<a name="line.538"></a>
<FONT color="green">539</FONT>             *@return    The audio frame size value<a name="line.539"></a>
<FONT color="green">540</FONT>             */<a name="line.540"></a>
<FONT color="green">541</FONT>            public synchronized int getAudioFrameSize() {<a name="line.541"></a>
<FONT color="green">542</FONT>                    return audioFrameSize;<a name="line.542"></a>
<FONT color="green">543</FONT>            }<a name="line.543"></a>
<FONT color="green">544</FONT>    <a name="line.544"></a>
<FONT color="green">545</FONT>    <a name="line.545"></a>
<FONT color="green">546</FONT>            /**<a name="line.546"></a>
<FONT color="green">547</FONT>             *  Gets the audio line attribute of the MetaFaceClient object<a name="line.547"></a>
<FONT color="green">548</FONT>             *<a name="line.548"></a>
<FONT color="green">549</FONT>             *@return    The audio line value<a name="line.549"></a>
<FONT color="green">550</FONT>             */<a name="line.550"></a>
<FONT color="green">551</FONT>            public synchronized SourceDataLine getAudioLine() {<a name="line.551"></a>
<FONT color="green">552</FONT>                    return line;<a name="line.552"></a>
<FONT color="green">553</FONT>            }<a name="line.553"></a>
<FONT color="green">554</FONT>    <a name="line.554"></a>
<FONT color="green">555</FONT>    <a name="line.555"></a>
<FONT color="green">556</FONT>            /**<a name="line.556"></a>
<FONT color="green">557</FONT>             *  Gets the window attribute of the MetaFaceClient object that accesses the<a name="line.557"></a>
<FONT color="green">558</FONT>             *  web browser<a name="line.558"></a>
<FONT color="green">559</FONT>             *<a name="line.559"></a>
<FONT color="green">560</FONT>             *@return    The JSObject window<a name="line.560"></a>
<FONT color="green">561</FONT>             */<a name="line.561"></a>
<FONT color="green">562</FONT>            public synchronized JSObject getWindow() {<a name="line.562"></a>
<FONT color="green">563</FONT>                    return window;<a name="line.563"></a>
<FONT color="green">564</FONT>            }<a name="line.564"></a>
<FONT color="green">565</FONT>    <a name="line.565"></a>
<FONT color="green">566</FONT>    <a name="line.566"></a>
<FONT color="green">567</FONT>            /**<a name="line.567"></a>
<FONT color="green">568</FONT>             *  Gets the FAP buffer size of the MetaFaceClient<a name="line.568"></a>
<FONT color="green">569</FONT>             *<a name="line.569"></a>
<FONT color="green">570</FONT>             *@return    The FAP buffer size value<a name="line.570"></a>
<FONT color="green">571</FONT>             */<a name="line.571"></a>
<FONT color="green">572</FONT>            protected synchronized int getFAPBufferSize() {<a name="line.572"></a>
<FONT color="green">573</FONT>                    return (fapdatabuffer.size());<a name="line.573"></a>
<FONT color="green">574</FONT>            }<a name="line.574"></a>
<FONT color="green">575</FONT>    <a name="line.575"></a>
<FONT color="green">576</FONT>    <a name="line.576"></a>
<FONT color="green">577</FONT>            /**<a name="line.577"></a>
<FONT color="green">578</FONT>             *  Gets the phoneme buffer size attribute of the MetaFaceClient<a name="line.578"></a>
<FONT color="green">579</FONT>             *<a name="line.579"></a>
<FONT color="green">580</FONT>             *@return    The phoneme buffer size value<a name="line.580"></a>
<FONT color="green">581</FONT>             */<a name="line.581"></a>
<FONT color="green">582</FONT>            protected synchronized int getPhonemeBufferSize() {<a name="line.582"></a>
<FONT color="green">583</FONT>                    return (phonemedatabuffer.size());<a name="line.583"></a>
<FONT color="green">584</FONT>            }<a name="line.584"></a>
<FONT color="green">585</FONT>    <a name="line.585"></a>
<FONT color="green">586</FONT>    <a name="line.586"></a>
<FONT color="green">587</FONT>            /**<a name="line.587"></a>
<FONT color="green">588</FONT>             *  Called when transitioning to the neutral position (will autopopulate the<a name="line.588"></a>
<FONT color="green">589</FONT>             *  FAP and phoneme buffers)<a name="line.589"></a>
<FONT color="green">590</FONT>             *<a name="line.590"></a>
<FONT color="green">591</FONT>             *@param  frames  the number of frames to use in the transition<a name="line.591"></a>
<FONT color="green">592</FONT>             */<a name="line.592"></a>
<FONT color="green">593</FONT>            protected synchronized void toNeutralPosition(int frames) {<a name="line.593"></a>
<FONT color="green">594</FONT>                    addFramesToBuffer(idlebehaviour.toNeutralFAPs(lastframe, frames));<a name="line.594"></a>
<FONT color="green">595</FONT>            }<a name="line.595"></a>
<FONT color="green">596</FONT>    <a name="line.596"></a>
<FONT color="green">597</FONT>    <a name="line.597"></a>
<FONT color="green">598</FONT>            /**<a name="line.598"></a>
<FONT color="green">599</FONT>             *  Adds audio silence to the phoneme buffer<a name="line.599"></a>
<FONT color="green">600</FONT>             *<a name="line.600"></a>
<FONT color="green">601</FONT>             *@param  milliseconds  The length of the silence<a name="line.601"></a>
<FONT color="green">602</FONT>             */<a name="line.602"></a>
<FONT color="green">603</FONT>            protected synchronized void addAudioSilence(int milliseconds) {<a name="line.603"></a>
<FONT color="green">604</FONT>                    addPhonemeToBuffer(dsp.silencePhonemeString(milliseconds));<a name="line.604"></a>
<FONT color="green">605</FONT>            }<a name="line.605"></a>
<FONT color="green">606</FONT>    <a name="line.606"></a>
<FONT color="green">607</FONT>    <a name="line.607"></a>
<FONT color="green">608</FONT>            /**<a name="line.608"></a>
<FONT color="green">609</FONT>             *  Constructs the idle animation and autopopulates the FAP buffer<a name="line.609"></a>
<FONT color="green">610</FONT>             *<a name="line.610"></a>
<FONT color="green">611</FONT>             *@param  frames  the number of frames for idle behaviour<a name="line.611"></a>
<FONT color="green">612</FONT>             */<a name="line.612"></a>
<FONT color="green">613</FONT>            protected synchronized void idleAnimation(int frames) {<a name="line.613"></a>
<FONT color="green">614</FONT>                    addFramesToBuffer(idlebehaviour.generateIdleFAPs(frames));<a name="line.614"></a>
<FONT color="green">615</FONT>            }<a name="line.615"></a>
<FONT color="green">616</FONT>    <a name="line.616"></a>
<FONT color="green">617</FONT>    <a name="line.617"></a>
<FONT color="green">618</FONT>            protected void resetSynchronisation () {<a name="line.618"></a>
<FONT color="green">619</FONT>                    //Get rid of unused FAPs and phonemes<a name="line.619"></a>
<FONT color="green">620</FONT>                    fapdatabuffer.clear();<a name="line.620"></a>
<FONT color="green">621</FONT>                    phonemedatabuffer.clear();              <a name="line.621"></a>
<FONT color="green">622</FONT>    <a name="line.622"></a>
<FONT color="green">623</FONT>                    //Reset synchronisation of FAPs and audio<a name="line.623"></a>
<FONT color="green">624</FONT>                    numFrames = (int) ((float) line.getFramePosition() / afpvf);<a name="line.624"></a>
<FONT color="green">625</FONT>                    tooearly = false;               <a name="line.625"></a>
<FONT color="green">626</FONT>            }<a name="line.626"></a>
<FONT color="green">627</FONT>            <a name="line.627"></a>
<FONT color="green">628</FONT>            /**<a name="line.628"></a>
<FONT color="green">629</FONT>             *  Tests for the client being idle and executes the idle buffering scheme<a name="line.629"></a>
<FONT color="green">630</FONT>             */<a name="line.630"></a>
<FONT color="green">631</FONT>            protected synchronized void idleBufferingScheme() {<a name="line.631"></a>
<FONT color="green">632</FONT>    <a name="line.632"></a>
<FONT color="green">633</FONT>                    //If no audio being played, and no phomemes in the buffer<a name="line.633"></a>
<FONT color="green">634</FONT>                    if ((!line.isActive()) && (phonemedatabuffer.size() == 0)&& (fapdatabuffer.size() &lt;= 5)) {<a name="line.634"></a>
<FONT color="green">635</FONT>                            <a name="line.635"></a>
<FONT color="green">636</FONT>                            resetSynchronisation();<a name="line.636"></a>
<FONT color="green">637</FONT>                            <a name="line.637"></a>
<FONT color="green">638</FONT>                            //Idle behaviour<a name="line.638"></a>
<FONT color="green">639</FONT>                            idleAnimation(125);<a name="line.639"></a>
<FONT color="green">640</FONT>    <a name="line.640"></a>
<FONT color="green">641</FONT>                            //Add silence to synchronise<a name="line.641"></a>
<FONT color="green">642</FONT>                            addAudioSilence(5000);                  <a name="line.642"></a>
<FONT color="green">643</FONT>                            <a name="line.643"></a>
<FONT color="green">644</FONT>                            //Do clean up<a name="line.644"></a>
<FONT color="green">645</FONT>                            System.gc();<a name="line.645"></a>
<FONT color="green">646</FONT>                    }<a name="line.646"></a>
<FONT color="green">647</FONT>            }<a name="line.647"></a>
<FONT color="green">648</FONT>    <a name="line.648"></a>
<FONT color="green">649</FONT>    <a name="line.649"></a>
<FONT color="green">650</FONT>            /**<a name="line.650"></a>
<FONT color="green">651</FONT>             *  Deletes any temporary MetaFace framework files<a name="line.651"></a>
<FONT color="green">652</FONT>             *<a name="line.652"></a>
<FONT color="green">653</FONT>             *@param  filestr    A partial file string to match against potential file to<a name="line.653"></a>
<FONT color="green">654</FONT>             *      delete<a name="line.654"></a>
<FONT color="green">655</FONT>             *@param  extension  The extension of files to delete<a name="line.655"></a>
<FONT color="green">656</FONT>             */<a name="line.656"></a>
<FONT color="green">657</FONT>            protected synchronized void cleanTemporaryFiles(String filestr, String extension) {<a name="line.657"></a>
<FONT color="green">658</FONT>                    String temp = null;<a name="line.658"></a>
<FONT color="green">659</FONT>                    File tempfile;<a name="line.659"></a>
<FONT color="green">660</FONT>                    File[] list;<a name="line.660"></a>
<FONT color="green">661</FONT>                    int i;<a name="line.661"></a>
<FONT color="green">662</FONT>    <a name="line.662"></a>
<FONT color="green">663</FONT>                    //Create temporary file and get directory structure<a name="line.663"></a>
<FONT color="green">664</FONT>                    try {<a name="line.664"></a>
<FONT color="green">665</FONT>                            temp = File.createTempFile(filestr, extension).toString();<a name="line.665"></a>
<FONT color="green">666</FONT>                    } catch (IOException e) {<a name="line.666"></a>
<FONT color="green">667</FONT>                            e.printStackTrace();<a name="line.667"></a>
<FONT color="green">668</FONT>                            System.runFinalization();<a name="line.668"></a>
<FONT color="green">669</FONT>                    }<a name="line.669"></a>
<FONT color="green">670</FONT>    <a name="line.670"></a>
<FONT color="green">671</FONT>                    //Get the files in this directory<a name="line.671"></a>
<FONT color="green">672</FONT>                    temp = temp.substring(0, temp.indexOf(filestr) - 1);<a name="line.672"></a>
<FONT color="green">673</FONT>                    tempfile = new File(temp);<a name="line.673"></a>
<FONT color="green">674</FONT>                    if (tempfile.isDirectory()) {<a name="line.674"></a>
<FONT color="green">675</FONT>                            list = tempfile.listFiles();<a name="line.675"></a>
<FONT color="green">676</FONT>                            for (i = 0; i &lt; list.length; i++) {<a name="line.676"></a>
<FONT color="green">677</FONT>    <a name="line.677"></a>
<FONT color="green">678</FONT>                                    //If match criteria, then delete<a name="line.678"></a>
<FONT color="green">679</FONT>                                    if (((list[i].toString()).indexOf(filestr) >= 0) && ((list[i].toString()).indexOf(extension) >= 0)) {<a name="line.679"></a>
<FONT color="green">680</FONT>                                            list[i].delete();<a name="line.680"></a>
<FONT color="green">681</FONT>                                    }<a name="line.681"></a>
<FONT color="green">682</FONT>                            }<a name="line.682"></a>
<FONT color="green">683</FONT>                            list = null;<a name="line.683"></a>
<FONT color="green">684</FONT>                    }<a name="line.684"></a>
<FONT color="green">685</FONT>                    tempfile = null;<a name="line.685"></a>
<FONT color="green">686</FONT>            }<a name="line.686"></a>
<FONT color="green">687</FONT>    <a name="line.687"></a>
<FONT color="green">688</FONT>    <a name="line.688"></a>
<FONT color="green">689</FONT>            /**<a name="line.689"></a>
<FONT color="green">690</FONT>             *  Clean MetaFace framework files of this particular client class<a name="line.690"></a>
<FONT color="green">691</FONT>             */<a name="line.691"></a>
<FONT color="green">692</FONT>            private synchronized void cleanFiles() {<a name="line.692"></a>
<FONT color="green">693</FONT>                    String temp = null;<a name="line.693"></a>
<FONT color="green">694</FONT>                    File tempfile;<a name="line.694"></a>
<FONT color="green">695</FONT>                    File[] list;<a name="line.695"></a>
<FONT color="green">696</FONT>                    int i;<a name="line.696"></a>
<FONT color="green">697</FONT>    <a name="line.697"></a>
<FONT color="green">698</FONT>                    //Create temporary file to get directory structure<a name="line.698"></a>
<FONT color="green">699</FONT>                    try {<a name="line.699"></a>
<FONT color="green">700</FONT>                            temp = File.createTempFile("MFFW_phonemes", ".wav").toString();<a name="line.700"></a>
<FONT color="green">701</FONT>                    } catch (IOException e) {<a name="line.701"></a>
<FONT color="green">702</FONT>                            e.printStackTrace();<a name="line.702"></a>
<FONT color="green">703</FONT>                            System.runFinalization();<a name="line.703"></a>
<FONT color="green">704</FONT>                    }<a name="line.704"></a>
<FONT color="green">705</FONT>    <a name="line.705"></a>
<FONT color="green">706</FONT>                    temp = temp.substring(0, temp.indexOf("MFFW_phonemes") - 1);<a name="line.706"></a>
<FONT color="green">707</FONT>                    tempfile = new File(temp);<a name="line.707"></a>
<FONT color="green">708</FONT>    <a name="line.708"></a>
<FONT color="green">709</FONT>                    //test for temporary files and delete as appropriate<a name="line.709"></a>
<FONT color="green">710</FONT>                    if (tempfile.isDirectory()) {<a name="line.710"></a>
<FONT color="green">711</FONT>                            list = tempfile.listFiles();<a name="line.711"></a>
<FONT color="green">712</FONT>                            for (i = 0; i &lt; list.length; i++) {<a name="line.712"></a>
<FONT color="green">713</FONT>                                    if (((list[i].toString()).indexOf("MFFW_") >= 0) && (((list[i].toString()).indexOf(".wav") >= 0) || ((list[i].toString()).indexOf(".xml") >= 0))) {<a name="line.713"></a>
<FONT color="green">714</FONT>                                            list[i].delete();<a name="line.714"></a>
<FONT color="green">715</FONT>                                    }<a name="line.715"></a>
<FONT color="green">716</FONT>                            }<a name="line.716"></a>
<FONT color="green">717</FONT>                            list = null;<a name="line.717"></a>
<FONT color="green">718</FONT>                    }<a name="line.718"></a>
<FONT color="green">719</FONT>                    tempfile = null;<a name="line.719"></a>
<FONT color="green">720</FONT>            }<a name="line.720"></a>
<FONT color="green">721</FONT>    <a name="line.721"></a>
<FONT color="green">722</FONT>    <a name="line.722"></a>
<FONT color="green">723</FONT>            /**<a name="line.723"></a>
<FONT color="green">724</FONT>             *  Synthesises audio using the DSP<a name="line.724"></a>
<FONT color="green">725</FONT>             *<a name="line.725"></a>
<FONT color="green">726</FONT>             *@param  phonemes  The phonemes to synthesise<a name="line.726"></a>
<FONT color="green">727</FONT>             *@return           The filename of the resulting WAV file (or null)<a name="line.727"></a>
<FONT color="green">728</FONT>             */<a name="line.728"></a>
<FONT color="green">729</FONT>            protected synchronized String synthesiseWaveform(String phonemes) {<a name="line.729"></a>
<FONT color="green">730</FONT>                    String filename = null;<a name="line.730"></a>
<FONT color="green">731</FONT>                    String wavfilename;<a name="line.731"></a>
<FONT color="green">732</FONT>                    int i;<a name="line.732"></a>
<FONT color="green">733</FONT>                    FileWriter fw;<a name="line.733"></a>
<FONT color="green">734</FONT>    <a name="line.734"></a>
<FONT color="green">735</FONT>                    if (phonemes == null) {<a name="line.735"></a>
<FONT color="green">736</FONT>                            return (null);<a name="line.736"></a>
<FONT color="green">737</FONT>                    }<a name="line.737"></a>
<FONT color="green">738</FONT>                    if (phonemes.length() &lt;= 0) {<a name="line.738"></a>
<FONT color="green">739</FONT>                            return (null);<a name="line.739"></a>
<FONT color="green">740</FONT>                    }<a name="line.740"></a>
<FONT color="green">741</FONT>    <a name="line.741"></a>
<FONT color="green">742</FONT>                    wavfilename = dsp.synthesise(phonemes);<a name="line.742"></a>
<FONT color="green">743</FONT>                    return (wavfilename);<a name="line.743"></a>
<FONT color="green">744</FONT>            }<a name="line.744"></a>
<FONT color="green">745</FONT>    <a name="line.745"></a>
<FONT color="green">746</FONT>    <a name="line.746"></a>
<FONT color="green">747</FONT>            /**<a name="line.747"></a>
<FONT color="green">748</FONT>             *  Plays ECA speech audio<a name="line.748"></a>
<FONT color="green">749</FONT>             */<a name="line.749"></a>
<FONT color="green">750</FONT>            protected synchronized void playAudio() {<a name="line.750"></a>
<FONT color="green">751</FONT>                    String filename = null;<a name="line.751"></a>
<FONT color="green">752</FONT>                    String buffer = "";<a name="line.752"></a>
<FONT color="green">753</FONT>                    Vector ph;<a name="line.753"></a>
<FONT color="green">754</FONT>                    int lines = 0;<a name="line.754"></a>
<FONT color="green">755</FONT>                    int i;<a name="line.755"></a>
<FONT color="green">756</FONT>                    int toWrite;<a name="line.756"></a>
<FONT color="green">757</FONT>                    int bytesRead = 0;<a name="line.757"></a>
<FONT color="green">758</FONT>    <a name="line.758"></a>
<FONT color="green">759</FONT>                    //If a new WAV file is needed<a name="line.759"></a>
<FONT color="green">760</FONT>                    if (newfile) {<a name="line.760"></a>
<FONT color="green">761</FONT>                            if ((audioFile != null)) {<a name="line.761"></a>
<FONT color="green">762</FONT>                                    try {<a name="line.762"></a>
<FONT color="green">763</FONT>                                            audioInputStream.close();<a name="line.763"></a>
<FONT color="green">764</FONT>                                    } catch (Exception e) {<a name="line.764"></a>
<FONT color="green">765</FONT>                                            e.printStackTrace();<a name="line.765"></a>
<FONT color="green">766</FONT>                                    }<a name="line.766"></a>
<FONT color="green">767</FONT>                                    audioFile = null;<a name="line.767"></a>
<FONT color="green">768</FONT>                            }<a name="line.768"></a>
<FONT color="green">769</FONT>    <a name="line.769"></a>
<FONT color="green">770</FONT>                            //Get phonemes and synthesise WAV file<a name="line.770"></a>
<FONT color="green">771</FONT>                            ph = readPhonemesFromBuffer();<a name="line.771"></a>
<FONT color="green">772</FONT>                            for (i = 0; i &lt; ph.size(); i++) {<a name="line.772"></a>
<FONT color="green">773</FONT>                                    buffer = buffer.concat(((String) ph.elementAt(i)) + "\n");<a name="line.773"></a>
<FONT color="green">774</FONT>                            }<a name="line.774"></a>
<FONT color="green">775</FONT>                            if (buffer == null) {<a name="line.775"></a>
<FONT color="green">776</FONT>                                    return;<a name="line.776"></a>
<FONT color="green">777</FONT>                            }<a name="line.777"></a>
<FONT color="green">778</FONT>    <a name="line.778"></a>
<FONT color="green">779</FONT>                            filename = synthesiseWaveform(buffer);<a name="line.779"></a>
<FONT color="green">780</FONT>    <a name="line.780"></a>
<FONT color="green">781</FONT>                            if (filename == null) {<a name="line.781"></a>
<FONT color="green">782</FONT>                                    return;<a name="line.782"></a>
<FONT color="green">783</FONT>                            }<a name="line.783"></a>
<FONT color="green">784</FONT>    <a name="line.784"></a>
<FONT color="green">785</FONT>                            //Update state variables based on new WAV file<a name="line.785"></a>
<FONT color="green">786</FONT>                            newfile = false;<a name="line.786"></a>
<FONT color="green">787</FONT>                            audioFile = new File(filename);<a name="line.787"></a>
<FONT color="green">788</FONT>                            try {<a name="line.788"></a>
<FONT color="green">789</FONT>                                    audioInputStream = AudioSystem.getAudioInputStream(audioFile);<a name="line.789"></a>
<FONT color="green">790</FONT>                                    audioFrameRate = audioInputStream.getFormat().getFrameRate();<a name="line.790"></a>
<FONT color="green">791</FONT>                                    audioFrameSize = audioInputStream.getFormat().getFrameSize();<a name="line.791"></a>
<FONT color="green">792</FONT>                                    afpvf = audioFrameRate / videoFrameRate;<a name="line.792"></a>
<FONT color="green">793</FONT>    <a name="line.793"></a>
<FONT color="green">794</FONT>                                    //If first file being played -- initialise the audio line of the application<a name="line.794"></a>
<FONT color="green">795</FONT>                                    if (firstfile) {<a name="line.795"></a>
<FONT color="green">796</FONT>                                            firstfile = false;<a name="line.796"></a>
<FONT color="green">797</FONT>                                            info = new DataLine.Info(SourceDataLine.class, audioInputStream.getFormat());<a name="line.797"></a>
<FONT color="green">798</FONT>                                            line = (SourceDataLine) AudioSystem.getLine(info);<a name="line.798"></a>
<FONT color="green">799</FONT>                                            line.open();<a name="line.799"></a>
<FONT color="green">800</FONT>                                            line.start();<a name="line.800"></a>
<FONT color="green">801</FONT>                                    }<a name="line.801"></a>
<FONT color="green">802</FONT>                            } catch (UnsupportedAudioFileException e) {<a name="line.802"></a>
<FONT color="green">803</FONT>                                    System.out.println("Can't open audio input stream (Unsupported file)");<a name="line.803"></a>
<FONT color="green">804</FONT>                                    e.printStackTrace();<a name="line.804"></a>
<FONT color="green">805</FONT>                            } catch (IOException e) {<a name="line.805"></a>
<FONT color="green">806</FONT>                                    System.out.println("Can't open audio input stream (IO Exception)");<a name="line.806"></a>
<FONT color="green">807</FONT>                                    e.printStackTrace();<a name="line.807"></a>
<FONT color="green">808</FONT>                            } catch (LineUnavailableException e) {<a name="line.808"></a>
<FONT color="green">809</FONT>                                    System.out.println("Source data line not available");<a name="line.809"></a>
<FONT color="green">810</FONT>                                    e.printStackTrace();<a name="line.810"></a>
<FONT color="green">811</FONT>                            }<a name="line.811"></a>
<FONT color="green">812</FONT>                    }<a name="line.812"></a>
<FONT color="green">813</FONT>    <a name="line.813"></a>
<FONT color="green">814</FONT>                    //Read from the WAV file and place bytes in audio buffer<a name="line.814"></a>
<FONT color="green">815</FONT>                    try {<a name="line.815"></a>
<FONT color="green">816</FONT>    <a name="line.816"></a>
<FONT color="green">817</FONT>                            //Get how many bytes can be read and placed without blocking<a name="line.817"></a>
<FONT color="green">818</FONT>                            toWrite = line.available();<a name="line.818"></a>
<FONT color="green">819</FONT>                            if (toWrite > 0) {<a name="line.819"></a>
<FONT color="green">820</FONT>                                    if (toWrite > 100000) {<a name="line.820"></a>
<FONT color="green">821</FONT>                                            toWrite = 100000;<a name="line.821"></a>
<FONT color="green">822</FONT>                                    }<a name="line.822"></a>
<FONT color="green">823</FONT>    <a name="line.823"></a>
<FONT color="green">824</FONT>                                    //Get and write bytes<a name="line.824"></a>
<FONT color="green">825</FONT>                                    if ((bytesRead = audioInputStream.read(audioBytes, 0, toWrite)) != -1) {<a name="line.825"></a>
<FONT color="green">826</FONT>                                            line.write(audioBytes, 0, bytesRead);<a name="line.826"></a>
<FONT color="green">827</FONT>                                    } else {<a name="line.827"></a>
<FONT color="green">828</FONT>                                            newfile = true;<a name="line.828"></a>
<FONT color="green">829</FONT>                                            cleanFiles();<a name="line.829"></a>
<FONT color="green">830</FONT>                                    }<a name="line.830"></a>
<FONT color="green">831</FONT>                            }<a name="line.831"></a>
<FONT color="green">832</FONT>                    } catch (IOException e) {<a name="line.832"></a>
<FONT color="green">833</FONT>                            System.out.println("Problem with audio line");<a name="line.833"></a>
<FONT color="green">834</FONT>                            e.printStackTrace();<a name="line.834"></a>
<FONT color="green">835</FONT>                    }<a name="line.835"></a>
<FONT color="green">836</FONT>            }<a name="line.836"></a>
<FONT color="green">837</FONT>    <a name="line.837"></a>
<FONT color="green">838</FONT>    <a name="line.838"></a>
<FONT color="green">839</FONT>            /**<a name="line.839"></a>
<FONT color="green">840</FONT>             *  Determines if the current FAP frame is early based on the current frame of<a name="line.840"></a>
<FONT color="green">841</FONT>             *  the audio line buffer<a name="line.841"></a>
<FONT color="green">842</FONT>             *<a name="line.842"></a>
<FONT color="green">843</FONT>             *@param  numFrames  The number of frames rendered<a name="line.843"></a>
<FONT color="green">844</FONT>             *@return            Whether FAP is early<a name="line.844"></a>
<FONT color="green">845</FONT>             */<a name="line.845"></a>
<FONT color="green">846</FONT>            private synchronized boolean frameEarly(int numFrames) {<a name="line.846"></a>
<FONT color="green">847</FONT>                    if ((float) numFrames * afpvf > (float) line.getFramePosition() + afpvf) {<a name="line.847"></a>
<FONT color="green">848</FONT>                            return (true);<a name="line.848"></a>
<FONT color="green">849</FONT>                    }<a name="line.849"></a>
<FONT color="green">850</FONT>                    return (false);<a name="line.850"></a>
<FONT color="green">851</FONT>            }<a name="line.851"></a>
<FONT color="green">852</FONT>    <a name="line.852"></a>
<FONT color="green">853</FONT>    <a name="line.853"></a>
<FONT color="green">854</FONT>            /**<a name="line.854"></a>
<FONT color="green">855</FONT>             *  Determines if the current FAP late is early based on the current frame of<a name="line.855"></a>
<FONT color="green">856</FONT>             *  the audio line buffer<a name="line.856"></a>
<FONT color="green">857</FONT>             *<a name="line.857"></a>
<FONT color="green">858</FONT>             *@param  numFrames  The number of frames rendered<a name="line.858"></a>
<FONT color="green">859</FONT>             *@return            Whether FAP is late<a name="line.859"></a>
<FONT color="green">860</FONT>             */<a name="line.860"></a>
<FONT color="green">861</FONT>            private synchronized boolean frameLate(int numFrames) {<a name="line.861"></a>
<FONT color="green">862</FONT>                    if (((float) numFrames * afpvf &lt; (float) line.getFramePosition())) {<a name="line.862"></a>
<FONT color="green">863</FONT>                            return (true);<a name="line.863"></a>
<FONT color="green">864</FONT>                    }<a name="line.864"></a>
<FONT color="green">865</FONT>                    return (false);<a name="line.865"></a>
<FONT color="green">866</FONT>            }<a name="line.866"></a>
<FONT color="green">867</FONT>    <a name="line.867"></a>
<FONT color="green">868</FONT>    <a name="line.868"></a>
<FONT color="green">869</FONT>            /**<a name="line.869"></a>
<FONT color="green">870</FONT>             *  Renders the MPEG-4 FAPs in the buffer and synchronises with speech audio<a name="line.870"></a>
<FONT color="green">871</FONT>             */<a name="line.871"></a>
<FONT color="green">872</FONT>            protected synchronized void renderAnimation() {<a name="line.872"></a>
<FONT color="green">873</FONT>                    if (!tooearly) {<a name="line.873"></a>
<FONT color="green">874</FONT>                            frame = readFrameFromBuffer();<a name="line.874"></a>
<FONT color="green">875</FONT>                            if (frame.isNull()) {<a name="line.875"></a>
<FONT color="green">876</FONT>                                    return;<a name="line.876"></a>
<FONT color="green">877</FONT>                            }<a name="line.877"></a>
<FONT color="green">878</FONT>                    }<a name="line.878"></a>
<FONT color="green">879</FONT>    <a name="line.879"></a>
<FONT color="green">880</FONT>                    // If frame is early -- return<a name="line.880"></a>
<FONT color="green">881</FONT>                    if (frameEarly(numFrames)) {<a name="line.881"></a>
<FONT color="green">882</FONT>                            tooearly = true;<a name="line.882"></a>
<FONT color="green">883</FONT>                            return;<a name="line.883"></a>
<FONT color="green">884</FONT>                    }<a name="line.884"></a>
<FONT color="green">885</FONT>    <a name="line.885"></a>
<FONT color="green">886</FONT>                    // While audio not between prev and this frame -- get next frame<a name="line.886"></a>
<FONT color="green">887</FONT>                    while (frameLate(numFrames) && (!tooearly)) {<a name="line.887"></a>
<FONT color="green">888</FONT>                            numFrames++;<a name="line.888"></a>
<FONT color="green">889</FONT>                            frame = readFrameFromBuffer();<a name="line.889"></a>
<FONT color="green">890</FONT>                            tooearly = false;<a name="line.890"></a>
<FONT color="green">891</FONT>                            if (frame.isNull()) {<a name="line.891"></a>
<FONT color="green">892</FONT>                                    return;<a name="line.892"></a>
<FONT color="green">893</FONT>                            }<a name="line.893"></a>
<FONT color="green">894</FONT>                    }<a name="line.894"></a>
<FONT color="green">895</FONT>    <a name="line.895"></a>
<FONT color="green">896</FONT>                    animateDrawingArea(frame);<a name="line.896"></a>
<FONT color="green">897</FONT>                    numFrames++;<a name="line.897"></a>
<FONT color="green">898</FONT>                    tooearly = false;<a name="line.898"></a>
<FONT color="green">899</FONT>            }<a name="line.899"></a>
<FONT color="green">900</FONT>    }<a name="line.900"></a>
<FONT color="green">901</FONT>    <a name="line.901"></a>




























































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